Hi, how did you collect timing data? I use FF3.5b4 with it's JIT 
JavaScript engine an I would like to see how it will change things for 
all three methods.

keemor wrote:
> Hi,
>
> I'd like to present 3 ways of building ul list and compare the speed
> of them.
> I used firebug's profiler on FF3
>
> html:
> <body>
>       <a href="#" id="go">go</a>
>       <ul id="list"></ul>
> </body>
> $('go').observe('click',go);
>
> First method:
> Time to build (2122.406ms, 84055 wywołań)
> function go(e){
>       e.stop();
>       $('list').update();
>       var tpl = new Template ('<li class="#{class}" id="#{id}">#{id}</
> li>');
>       $R(1, 1000).each(function(i){
>               $('list').insert(tpl.evaluate({
>                       class: 'klasa',
>                       id: i
>               }));
>       })
> }
>
> Second:
> Time to build (1754.548ms, 57053 wywołań)
> function go(e){
>       e.stop();
>       $('list').update();
>       $R(1, 1000).each(function(i){
>               var li = new Element('li', {
>                       class: 'klasa',
>                       id: i
>               }).update(i);
>               $('list').insert(li);
>       })
> }
>
> Third:
> Time to build (513.747ms, 30054 wywołań)
> function go(e){
>       e.stop();
>       var tpl = new Template ('<li class="#{class}" id="#{id}">#{id}</
> li>');
>       var list = new String;
>       $R(1, 1000).each(function(i){
>               list += tpl.evaluate({class: 'klasa', id: i});
>       })
>       $('list').update(list);
> }
>
> As you can see third method is 4 times faster than first one.
> In first two methods around 50% of time took
> extractScripts()      & stripScripts()        which are used in update and 
> insert
> methods.
>
> So if you have more complex RIA with many dynamic elements you can
> simply improve it significantly :)
>
>
>
>
> >
>   
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